Scraper



May 23, 1939.

c.,v| E BLEU scRAPER Filed July 29. 1935 2 Sheets-Sheet l 6. f zu@ /NVENTOR emmw Patented May 23, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to material moving devices adapted to be movedacross a surface to be treated, by al vehicle such as a tractor, for thepurpose of scraping up and removing materials. More specifically theinvention relates to that class of material moving devices having arevoluble bucket designed and adapted to assume excavating, carrying anddumping positions, and an auxiliary dirt retainingmember desposedforwardly of said revoluble bucket. In my Patent No. 1,891,427 datedDecember 20, 1932, I disclose such a device, in which the auxiliary dirtretaining memberis represented by reference number 44. It will be notedby reference to Figures 1 and 2 of Patent No'. 1,891,427 that the apron44 comprises side walls and an inclined forward wall which has no bottomportion that will serve as n earth supporting .bottom member. Fur- .tmore, as shown in Figure 4 of Patent No. 1,891,427, which is the loadingposition, the apron is automatically raised and tilted by operation ofthe control mechanism to cause the bucket B to assume the position shownand apron 44 will not serve as a material supporting bottom member inthis position, and it is therefore an object of the invention disclosedin this present application to so construct, arrange and control theauxiliary dirt retaining member that it will serve as an auxiliarybucket to be loaded in conjunction with the revoluble bucket to the endthat a larger load may be obtained with a given amount of power.

Another object of the invention is the provision in a material movingdevice having a revoluble bucket and an auxiliary-bucket disposedforwardly of the revolving bucket whereby when the revolving bucketbecomes loaded materials will move into the auxiliary bucket.

Another object is the provision in a scraper having a revoluble bucketand an auxiliary bucket disposed forwardly thereof, of independentlyoperable control mechanism for each of said buckets.

Another object is the provision in a material moving device of amaterial carrier comprising, a revoluble bucket provided with a materialscraping and receiving edge, and an auxiliary bucket disposed forwardlyof said revoluble bucket and arranged relative thereto to be loaded inconjunction therewith.

Another object is the provision in a material moving device of arevoluble bucket, and means whereby said bucket may be revolvedbackwardly to dump the load.

Another object is the provision in a material (Cl. :iL-129) movingdevice of a draft frame, a revoluble bucket having a material scrapingand receiving edge, an auxiliary bucket disposed forwardly of saidrevolving bucket arranged relative thereto to be loaded in conjunctiontherewith and means mounting said revoluble bucket, said auxiliarybucket and said frame about a common axis.

l, Another object is the provision/'in a material moving device of aframe, a main bucket mounted thereon, an auxiliary bucket disposedforwardly of said main bucket and arranged relative thereto, and meanscontinuously acting upon said auxiliary bucket to minimize the tendencyto downward movement because of its weight.

Another object is the provision in a material moving device including amain frame; a revoluble bucket and auxiliary bucket; of means wherebythe materials in both of said buckets may be dumped rearwardly of thescraper.

Another object is the provision in a material moving device including arevoluble bucket and an auxiliary bucket disposed forwardly thereof andarranged relative thereto to be loaded in conjunction therewith, ofpower operated control means to rotate said revoluble bucket, hold saidbucket stationary in a selected position, or release said bucket forrevolving movement.

These and other objects are attained by the embodiment of my inventionillustrated in the accompanying drawings which:

Figure 1 is a side elevation of the preferred form of the device in loadcarrying position showing latch mechanism for latching the two bucketstogether for rear dumping.

Figure 2 is a fragmentary plan view of the device as shown in Fig. 1showing a plan view of said latch mechanism.

Figure 3 is an enlarged plan view of the rear dumping latch member.

Figure 4 is an enlarged side view of the rear dump latch member.

Figure 5 is a side elevation in section of the revoluble bucket shown inFigures 1 and 6.

Figure 6 is a side elevation of the device in the act of tiltingrearwardly.

Figure 'I is a side elevation showing how the materials from bothbuckets are dumped rearwardly.

Figure 8 is a side elevation showing the revoluble bucket in upside`down position and the auxiliary bucket in normal position.

Referring now more particularly to the characters of reference orrthedrawings, F is a frame comprising side arms 3, 3 connected at their for-Connected to the cross beam and extending forvwardly therefrom is adraft beam I adapted at its forward end for connection to a draftdevice, such as a tractor. Extending between the rear ends of side arms3, 3 and journaled thereon is a revoluble bucket 4 provided at itsopposite ends with two hoods 5, 5 forming a part of the revoluble bucketand open on their under sides within these hoods are rolling supports 33mcunted upon bearings supported in the ends of the revoluble bucket asat 6, 6, and in the inner sides of the hoods 5, 5. The forward side ofthe bucket at opposite ends thereof is provided with the usual runnersor shoes 8, 8. Secured at the forward lower edge of the bucket is amaterial scraping and receiving edge 9. 'I'he forward walls I2, I2 ofthe hoods may be formed whereby the scraping edge 9 extends only betweenthe inner walls of the hoods and short scraping edges KII, II areattached to the lower portion of the forward walls I2, I2 of the hoods.When the forward walls, I2 of the hoods are formed as in Figure 5thescraping edge 9 extends the entire distance between the bucket headplates I3, I3. Secured to each of the bucket head plates I3, I3 is apair of stops I4, I4 and I5, I5 comprising outwardly projecting pinscarrying rollers.

Disposed forwardly of the revoluble bucket and arranged relative theretois an auxiliary bucket I6 open at its rear side and having rearwardlyextending arms II, I1 journaled at their rear ends on said revolublebucket in common with the frame F. Mounted on the rearwardly rextendingarms II at I9 is a latch member I8 adapted to engage the stops I5 on thehead plates I3, land having an upwardly extending arm 20 provided at itsupper end with a' pull rope 2| extending forwardly to within easyreachof the operator of the tractor for manual operation.

Extending transversely of the frame F and suitably journaled thereon inbearings such as at 22, 23, and 24,` is crank shaft 25 provided at eachend thereof with crank arms 26, 26. Pivotally secured at the outer endsof crank arms 26 by pins 21 is the forward ends of control bars 28pivotally connected forwardly of their rear ends by a pin 29 to thelower end of links 30, 30 pivotally connected at their upper ends bymeans of pins 3|, 3|, to side arms 3, 3 of the frame F. The rearwardlyprojecting ends 32 of control bars 28 are arranged and adapted to engageor disengage stops I4, I4 and I5, I5 on the head plates of the revolublebucket 4.

The lower portion of the forward wall of the auxiliary bucket I6 isprovided with a bracket 34. Secured to bracket 34 at 35 is a cable 36.Mounted on the frame F is bracket 31 carrying sheave 38. Cable 36extends upwardly thence over sheave 3 8 and forwardlyunder a directionchange sheave 39, thence toa winding drum unit on 'the tractor` notshown because conventional).

Secured to crank shaft 25 is a crank arml 40 carrying at its 'upper enda sheave 4I. Secured to frame F is direction change sheave 42. Securedto frame F at 43 is a cable 44. Cable 44 passes upwardly and over sheave4I, thence under direction change sheave 42, thence forwardly to awinding drum unit on the tractor (not shown because conventional).

While no specific showing is made of a control mechanism operated bycables and a winding drum, still it will be apparent to one versed inthe art that other means, such as a hydraulic ram mechanism, asindicated in my U. S. Letters Patent No. 1,958,195 may be substitutedfor the winding drum to draw the cables without departing from thespirit of the invention.

In operation the device is attached at 51 to a suitable draftV device,such as a tractor, to be adyancedacross a surface to be treated thereby.'I'he revoluble bucket 4 is pivotally connected to the frame at 6rearwardly of the center of gravity of said bucket so that said bucket'normally tends to revolve clockwise. The winding drumv-.inot shown)carrying cable 44 is released thus allowing revoluble bucket 4 to rotateforwardly or clockwise causing link 36 and crank arm 26 to swingdownwardly and forwardly. When the bucket 4 has assumed a scrapingposition, it will be adjustablyy retained in position by control bars 28engaging stops I4. As the device advances while in this positionmaterials will be scraped up by the material scraping and receivingedge. When both buckets are loaded the winding drum (not shown) isoperated to rewind cable 44 resulting in swinging crank arm 40 forwardlythus rotating crank shaft 25 and swing links 30 and crank arms 26rearwardly and upwardly thus raisingv control bars 28 and reverselyrotating bucket 4 to the carrying position. In this position thematerials may be transported to any desired location. Now the bucketsmay be unloaded by revolving bucket 4 either forwardly or backwardly. Tounload while moving forwardly, the winding drum (not shown) carryingcable 44 is released allowing the control bars 28 till such time asstops I4 have passed the rear ends of control bars 28, at which time thewinding drum (not shown) carrying cable 44 is operated to rewind cable44 and again position the'rear end of control bars 28 in the path of thestops on the bucket head plates. Bucket 4 will continue to rotateforwardly While advancing until stops I5 engage control bars 28. 'Ihusthe device is caused to assume a dumping position while moving forwardlyand continued forward movement of the device will result in spilling theload. When the load has been discharged, cable 44 is again operated tomanipulate control bars 28 and release stops I5, and engage the stopsI4. Discharging the materials rearwardly that is, by reversely rotatingbucket 4, is usually desired only when the materials are to be dumpedinto a depression into which it is impractical to drive the tractor andthe device. In such cases rear dumping is accomplished as follows: Thedevice is backed up to a point near the rim of the depression. Then pullrope 2| is manipulated to cause latch member I8 to engage stops I5.While holding latch member I8 into engagement with stops I5 as shown inFigure 6, a winding drum (not shown) carrying cable 36 is operated towind cable 36 and thus tilt the buckets into positions shown in Figures6 and 7. At this point the lower rear side of bucket 4 will havecontacted the ground and the materials in the auxiliary bucket I6 willhave spilled rearwardlyas shown in Figure 7. Then vcomplete dumping ofbucket 4 is accomplished by Ais continued till stops Il again engageVcontrol bars 28.

From the foregoing description it will be apparent to one versed in theart that I have disclosed a device as substantially fulfills the obiectsof the invention as set forth, and while this specification sets forthin detail the present and preferred construction of the device', inpractice such arrangement, correlation and construction of parts,members and features may be resorted to as do not form a departure fromthe spirit of the invention, as defined in the appended claims.

Having thus described my invention, what I claim as new and useful anddesire to secure by Letters Patent is:

1. A device of the class described comprising, a. frame adapted Ito bemoved across the surface of the earth, a bucket, an auxiliary bucketdisposed forwardly of said first mentioned bucket and arranged relativethereto to be loaded in conjunction therewith, means operablyassociating said buckets and said frame about a common axis, meanspivotally mounting said auxiliary bucket on the pivotal connection ofsaid revolvable bucket with said frame and means operable to cause saiddevice to assume operative and inoperative positions. y

2. A device of the class described comprising,

a frame adapted to be moved across the surface of the earth, a bucketprovided with a material scraping and receiving edge for scraping up andloading materials, means pivotally connecting said frame and saidbucket, an auxiliary bucket disposed forwardly of said first namedbucket and arranged relative thereto to be loaded in conjunctiontherewith, means pivotally mounting said auxiliary bucket on the pivotalconnection of said revolvable bucket with said frame,

and means to cause the device to assume operative and inoperativepositions.

3. In a scraper a main bucket comprising a bottom and backwall and sideWalls therefor, a scraper disposed at the forward end of said bottom forscraping up material, an auxiliary bucket including a bottom andsidewalls therefor disposed in front of said main bucket and confrontingthe same to be loaded in common therewith, means pivotally mounting saidauxiliary bucket on the pivotal connection of said main bucket for`vertical swinging movement, the contiguous side walls of both bucketsbeing substantially in a common plane and formed with their'adjacentedges concentric with the pivotal mounting of said auxiliary bucket.

` CHARLES LE BLEU.

